r/Network • • Aug 23 '26 Bravo

Link Wifi vs Ethernet

Post image
9.0k Upvotes

r/Network • • 21d ago Popcorn

Link Electrician cut a wire by accident but he "fixed it"

Post image
1.9k Upvotes

r/Network • • Jan 03 '25

Link Left in purchased home, how much is this worth?

Thumbnail
gallery
1.3k Upvotes

r/Network • • Sep 27 '26 Popcorn

Link lOwKarMa

Post image
593 Upvotes

r/Network • • Mar 18 '25

Link Is this true

Post image
436 Upvotes

r/Network • • May 01 '25

Link Do you see what I see

Post image
331 Upvotes

I bought this intel x540 dual 10G nic a few weeks ago and it’s been nothing but problems. The right nic only showed up as 1000BaseT in pfsense, and the left nic only showed as 100BaseTX. I experimented around with all types of cables and I figured the NIC had trouble. The right side 1000BaseT made some sense given that it’s plugged into a Gigabit switch. But the 100BaseTX I couldn’t find any other reason for.

Inspection of the actual card shows what appears to be pins bridged by the solder. I rarely ever have to work with electronics in this way, so I don’t know for sure if this is a problem. I really think it is though, given that the right side is not bridged in this way.


r/Network • • Dec 18 '25

Link Can anyone help me figure out the order I need to put these wires in please?

Post image
290 Upvotes

I didn't realise it was a cheapo cable, the wires are really thin compared to my round one. Obviously the colours don't match up to the instructions I'm following, could you help me figure the order please?


r/Network • • Jun 09 '26 Bravo

Link Made My Outdoor AP Less Noticeable

Post image
260 Upvotes

I bought an outdoor AP, but it only came in white or camo colors. I didn’t want it to be too noticeable, so I painted it to better blend in with the rocks around it.

However, after doing that, it feels like the Wi-Fi signal and stability aren’t as good as before.

Is this just a coincidence, or could the paint actually be affecting the AP’s performance?

Any thoughts—agree or disagree—are welcome.


r/Network • • Aug 11 '26

Link How does this make any sense? They're all private ip addresses that could be /24

Post image
254 Upvotes

At my wit's end


r/Network • • 1d ago Popcorn

Text FAA says a copper to fiber swap at one remote site flooded routers and stopped US takeoffs. How do you change a network you can't safely test?

179 Upvotes

Reading the updates on Friday's FAA ground stop, the cause so far is weirdly ordinary. Per the Transportation Secretary, a contractor (L3Harris) was doing routine maintenance at a remote FAA site, replacing copper with fiber. Something in that work started flooding other routers, and the routers in those facilities were made in 2001. Controllers saw radar and radio data go inconsistent, starting at the Chicago center and then Boston, Washington, New York and Minneapolis. Takeoffs stopped nationwide for about four and a half hours. They're still working out whether it was an install mistake or a faulty router.

I've spent most of my career on networking and platform code, and this is the kind of change that looks low risk on paper. It's one site and a physical layer swap. But with gear that old you often can't reproduce the setup in a lab, and one box that starts misbehaving can spray traffic everywhere if nothing upstream limits it.

Duffy's line was that by doing nothing you inject way more risk into the system. I half agree. If you freeze an old network until the full replacement lands, it keeps aging and fewer people remember how it behaves. If you keep patching it piece by piece, every small change is a production experiment on a system nobody can fully model.

If you ran a network like this, would you freeze changes until the replacement was ready, or keep doing small cutovers and spend the effort on containing the blast radius?


r/Network • • Sep 06 '24

Link Why do people just not care about computer networks?

Post image
179 Upvotes

r/Network • • Dec 12 '25

Link Can this be used to remotely monitor the position of a vehicle?

Post image
174 Upvotes

Not sure where to ask this, but I have a Serria Wireless airlink LX60 and was wondering if I can use this to remotely monitor my vehicles position. (I bought it at auction with another item)


r/Network • • Sep 26 '24

Link I accidentally cut through the phone line and lost all internet. Quick fix has helped but is now very slow, how do I fix this properly?

Post image
167 Upvotes

r/Network • • Apr 24 '24

Link Have anyone idea how to remove silicon from PoE ports?

Post image
153 Upvotes

r/Network • • Apr 11 '26

Link What is this?

Post image
149 Upvotes

I was looking through some stuff at a thrift store and found this. at first I thought it was a network switch, but it has fiber optic ports.


r/Network • • Jun 21 '20

Link Who ever this guy is. He needs a raise! Godlevel cable management. 🙏🏽

Post image
128 Upvotes

r/Network • • Jun 25 '26

Link The only way I found to keep my daughter from turning off the internet.

Post image
122 Upvotes

To be brief, my daughter is 2 years old and wants to touch anything that flashes. After turning off the internet about 20 times, this was the solution to prevent her from turning it off again.


r/Network • • Jun 23 '26

Link Contractor blew in new 2 strand FTTH cable. Then proceeded to bend 180 degrees and coil like this.

Post image
117 Upvotes

r/Network • • Dec 10 '24

Link TCP/IP 🤭

Post image
117 Upvotes

r/Network • • Aug 20 '26

Link So made my first rack :)

Thumbnail
gallery
114 Upvotes

For a rack so small, to fill it out costed me a lot. Just glad it’s over. My security cams are nice and organized along with extended WiFi range and Internet ports.


r/Network • • Dec 16 '24

Link New to computer networking, How's my diagram? Am I missing anything generally vital?

Post image
113 Upvotes

r/Network • • Aug 18 '26

Link Inside a ooredoo cell tower

Thumbnail
gallery
104 Upvotes

r/Network • • Dec 12 '25 Heartwarming

Link Rose interfering with the wifi signal

Post image
100 Upvotes